This cable converts a 5-pin Tone cabinet connector present on some Hammond Organs to a 6-pin Leslie connector.
It allows the connection a Leslie Model 21 (Not the modern 2021 or 2021mk 2), 22, 32, 122,
Vintage 122A, 142, 222, or 242 to your organ
If no other Leslie kit has been used in this installation, the Leslie will run always in the fast mode.